@-moz-document url(about:newtab) {
#newtab-margin-undo-container > #newtab-undo-container 
    { margin-bottom: 0; }
#newtab-margin-top > #newtab-undo-container 
    { margin-top: 32px; }
#newtab-scrollbox #newtab-margin-top:empty 
    { min-height: 32px; }
#newtab-scrollbox #newtab-margin-top { -moz-box-flex: 0 }
#newtab-scrollbox #newtab-margin-bottom { -moz-box-flex: 0 }
}
